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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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Disk Requirements

The only support requirement dictated by Microsoft around disk space is that each host must support at least 500 GB of free space. The actual space consumed by Lync virtual machines varies by role and by business requirements for monitoring or archiving data. Using fixed or dynamically expanding disks also has a big effect on how much space is required. Generally, allocating 40 to 50 GB of disk space per virtual machine for the operating system is sufficient. Lync Back-End database Servers or Monitoring and Archiving Servers with a collocated SQL database are going to consume much more space than a Front-End or Edge Server.

Both direct attached storage (DAS) and SAN disks are supported to hold Lync virtual machines. Which option ...

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